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The experiment with the 290 ns delay line turned out to be successful, the output signal level increased 3 times. 180ns is installed as standard on the board. New boards have been assembled, while I am testing how different in sound is 290ns from 180ns
C2 C3 10n in my opinion a very large capacity, you need 100-330p
R1 you can safely throw out
С7 discard, diode 1N 5817 is not suitable, replace with 1N5711
Development 2020. Based on information from Accuphase TUNER T-109V. This Advanced Differential Gate Linear (ADGL) demodulator delivers the best sound ever known, compared to quadrature and PLL by a significant margin in quality, bass and detail. With scientifically based high linearity of the...
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